fix(ci): add groq to docs build list (#1800)

Author: rektdeckard

livekit-plugins/install_local.sh

@@ -15,6 +15,7 @@ pip install \
   "${SCRIPT_DIR}/livekit-plugins-elevenlabs" \
   "${SCRIPT_DIR}/livekit-plugins-fal" \
   "${SCRIPT_DIR}/livekit-plugins-google" \
+  "${SCRIPT_DIR}/livekit-plugins-groq" \
   "${SCRIPT_DIR}/livekit-plugins-llama-index" \
   "${SCRIPT_DIR}/livekit-plugins-neuphonic" \
   "${SCRIPT_DIR}/livekit-plugins-nltk" \